This article presents a reflexion about the possible use of categories belonging to collective health and psichoanalisis to face the new dilemmas of the health practices nowadays in the suburbs of big cities in the contemporary world. Taking into account the gadamerian recommendation of coming back to the past and reviewing the traditions, this paper reformulates some classical concepts within their disciplinary fields which are herein updated acquiring relevance at being reinterpreted. Finally, some examples are given regarding the application of these concepts to overcome some of the obstacles identified in the implementation of health public policies: vulnerability, active search, clinical spread and imaginary significations and team subjectivity.42173185